After just receiving my JP 6ft 8" wood edition foilboard as described in Piros earlier post I was finally able to try it out & compare it to what I am used to riding, my Coreban 7ft 31.5 115L paddlleboard that I converted to a foilboard.
My weight at 80kgs. Height 5ft 10" Average to good fitness at 59 years age.
To my disappointment the wind was blowing! So arrived at a beach with the most shelter to find it was still blowing offshore at a rate of what I would judge at at least 20 knots gusts. Was sooo frustrating for up to 11/2 hours getting blown around & at times unable to paddle against the wind!
So on the water I jumped onto my knees & paddled past the group of prone surfers to save any embarrassments falling off this thing. As it is well below the comfortable size paddleboard that I am used to.
Once away from most eyes I stood up. So here is my review in short.

Stability: Only slightly less than my Coreban & my Sunova 8ft 3" x 29 wide 110 litres SUP. So I was very relieved as I was unable to demo this foilboard before buying. I believe this size board on average would suit an average height rider up to a weight of 80kgs. From there stability would start to become more difficult.
For a one board quiver for most conditions I would have chosen the 7ft 115L board. But even the 6ft 8" board seems to be doable at this stage & I am comfortable with it.

Paddle speed: Well the JP feels as if it has 3 speeds compared to the 2 speeds of my Coreban. That is my Coreban is a dog to paddle before catching a wave so have to position myself as the wave breaks due to the Corebans excessive nose lift that initially pushes water before the foil starts to lift the board.
The JP continiously speeds up whilst paddling on the swell before the board leaves the water surface. Most likely due to its angled chined rails & its lightness. Much lighter than my Coreban. The JP feels like it is air filled.

Riding: More nippy, responsive, reactive. It feels more like the difference between a shortboard & a mini mal. The JP is the shortboard & the Coreban due to its heavy weight is like a mini mal. Even though both were on the same NP foil I found a riding difference where I would have to react quicker to correct any differences in ride direction especially & mainly in the nose up or down direction.
Just after lift off I would level out & then find the board would then want to nose down causing me to level it out again making me trying to correct the porpoising instead of cruising level. I put this to the boards lightness & me being used to nearly a year of riding my Coreban. Plus I was only riding in thigh high to waist high waves. I think at a higher speed the board would cruise straight as I had noticed on the bigger waves.
The JP will be much easier to throw around with experience. So impressed with that.

Pros: Great design. Very stable, good paddle speed on swell & reactive surfing. Looks great.

Cons: You need to find a wedge!!!!! But I knew this before my purchase. This would be so disappointing if you didn't have anything to pack up the foil plate mount at the tail end! Lucky I had a piece of 5mm thick chopping board that I had prepared the day before I surfed. Other wise I would have been frustrated trying to ride with the board nose up from level angle. Which I had experienced.
I think a 5mm wedge would be about right.
If JP supplied the wedge with the board then this wouldn't be my complaint.
Maybe the tail rocker was designed for wind foiling. But no excuse for surf foiling unless wedge supplied. A bit like purchasing a bike without a seat. Haa!
I found that a right size wedge that contacts all of the mating surfaces of the board & foil mount plate is hard to find. I don't believe there should be any gaps if using bits of packing & washers. It doesn't absorb the full load.
So I will be making one probably from epoxy & fibreglass matting.

Overall I am very happy with my purchase. Its suits me fine & love it.